'''
day5作业2
'''
# 1.
num = 8848.13
paper = 0.08 / 1000
count = 0
while 1:
    paper *= 2
    count += 1
    if paper >= num:
        break
print(count)
# 2.
a = 1
b = 1
# n = int(input('请输入月：'))
# if n == 1 or n == 2:
#     print('每个月兔子总数：', a)
# else:
#     for i in range(n-3):
#         a, b = b, a + b
#     print('每个月兔子总数：', a+b)
# 3.
num = 200
nums = []
pri = str(num)+'='
for i in range(2, num+1):
    if num % i == 0:
        for j in range(2, int(i ** 0.5 + 1)):
            if i % j == 0:
                break
        else:
            nums.append(i)
for x in nums:
    num //= x
    pri += str(x)+'*'
else:
    if num not in nums:
        for x in nums:
            num //= x
            pri += str(x)
            if num in nums:
                pri += str(num)
                break
print(pri)
